6.4 2017 now at 96K mi. Did all my own oil change's (except one) and went with oil sample reports. Was in a time crunch,took to the dealer, went on a trip, 100 miles down the road, smoke billowing in the rear view, pull over oil dripping from the filter, loose , not just a little, way loose. Under the truck on the side of the highway now low 1/2 qt, dress clothes ruined.
Took pictures, when I went back to dealer, they were sorry and offered me 2 free oil changes, and a car wash. Went back for the turn signal cam not working, and for the free oil change. When I picked it up said they could not get the turn signal to do it. And they forgot to change the oil. Left the dealers lot, turned left and it still didn't work. Not been back since.